Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.

查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。

Probeer deze oplossingen als u zich niet kunt aanmelden bij uw Outlook.com-, Hotmail-, Live- of MSN-e-mailaccount of als u niet goed weet hoe u zich moet aan- of afmelden.

Learn how to view, manage, and delete cookies in Microsoft Edge.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Learn how to use Wi-Fi 7 and Wi-Fi 6 and WPA3 in Windows for better wireless coverage and network security.

Learn how to remove passwords from your Microsoft account to increase security.

How to use the FILTER function in Excel to filter a range of data based on criteria you define.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.